new files

Task/Collections/REXX/collections-1.rexx

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+pr.=0        /*define a default for all elements for the stemmed array.*/
+
+pr.1 =2                    /*note that this array starts at  1  (one). */
+pr.2 =3
+pr.3 =5
+pr.4 =7
+pr.6 =11
+pr.6 =13
+pr.7 =17
+pr.8 =19
+pr.9 =23
+pr.10=29
+pr.11=31
+pr.12=37
+pr.13=41
+pr.14=43
+
+y.=0                       /*define a default for all years.           */
+y.1985 =  6020
+y.1986 =  7791
+y.1987 =  8244
+y.1988 = 10075
+x = y.2000                 /*X will have a value of zero (0).          */
+
+fib.0 = 0                  /*arrays may start with  zero (0).          */
+fib.1 = 1
+fib.2 = 1
+fib.3 = 2
+fib.4 = 3
+fib.5 = 5
+fib.6 = 8
+fib.7 =17
+
+   do n=-5  to 5           /*define an array from  -5  ──►  5          */
+   sawtooth.n=n
+   end   /*n*/             /*eleven elements will be defined.          */